Sunan an-Nasai، الحديث 2

This brief hadith records a consistent nightly habit of the Prophet ﷺ: whenever he rose from sleep to perform the night prayer (Tahajjud), his first act of preparation, even before beginning wudu, was to clean his mouth vigorously with a siwak, a natural tooth-cleaning twig traditionally taken from the arak tree. The verb used, yashusu, conveys a thorough, almost scrubbing motion rather than a light or perfunctory touch, indicating this was a deliberate and careful act of hygiene rather than a token gesture.

The broader principle here connects physical cleanliness directly to spiritual readiness. Rising in the middle of the night to stand before Allah in voluntary worship, after hours of sleep during which the mouth naturally becomes stale, the Prophet ﷺ prioritized presenting himself in the cleanest possible state for that encounter. This establishes siwak use as a recommended (mustahabb) practice tied specifically to moments of worship, rather than merely a general hygiene tip, and it is one of several hadiths scholars cite together to establish the broader sunnah of using the siwak before every prayer and upon waking.

Night prayer (Tahajjud or Qiyam al-Layl) held special significance in the early Muslim community, referenced directly in the Qur'an as a distinguishing devotional practice, and the Prophet ﷺ was known to be especially consistent in it even as it eventually became non-obligatory for the general community after initially being emphasized more heavily. Close Companions like Hudhayfah, who was known for his particular closeness to the Prophet ﷺ regarding private and even sensitive matters, were positioned to observe these nightly habits that most of the wider community, asleep in their own homes, simply could not have witnessed firsthand.

Commentators on Sunan an-Nasa'i, including the notable later commentary by Imam as-Suyuti in his marginal notes and the more detailed Sharh by Imam as-Sindi, discuss this hadith as part of a cluster of narrations establishing the broad recommendation of siwak use, noting that jurists across the schools agree on its being a strongly recommended sunnah rather than an obligation, while differing over precisely how many specific occasions (before every prayer, upon waking, before reciting Qur'an, and so on) are independently established by hadith versus derived by analogy from this and similar reports.

Scholars also draw attention to the specific pairing in this hadith between night rising and siwak use, distinguishing it from other hadiths that mention siwak before the five daily prayers generally. This specific connection to Tahajjud is treated by commentators as evidence that the recommendation intensifies around voluntary night worship, when the worshipper is choosing, unprompted by any obligation, to stand before Allah, making the accompanying physical preparation an expression of extra devotion rather than routine compliance.

A Muslim seeking to revive this specific sunnah can keep a siwak, now widely available in most Muslim communities and increasingly in general markets, on their nightstand alongside their prayer mat or Qur'an, making it a natural first step immediately upon waking for Tahajjud or Fajr. For those who do not have access to a traditional siwak, scholars generally accept a toothbrush as functioning within the same broad spirit of the sunnah for those who cannot obtain the specific traditional item, though the siwak itself remains preferred where available.

More broadly, this hadith can be used to build a small ritual of intentionality around night worship: rather than stumbling groggily into prayer straight from bed, taking even sixty seconds to clean the mouth, splash water on the face, and fully wake up mirrors the deliberate care the Prophet ﷺ took in preparing himself, and it tends to noticeably improve the quality of focus in the prayer that follows.

This hadith reveals the Prophet's ﷺ remarkable consistency between his public and private conduct. Even in the complete privacy of the night, with no Companion present to witness or record his actions except by rare coincidence, he maintained the same standard of careful, deliberate preparation for worship, showing that his character was not shaped by an audience but by sincere devotion.

Hudhayfah ibn al-Yaman was known among the Companions for being entrusted by the Prophet ﷺ with especially sensitive and private information, including the identities of hypocrites within Madinah, a level of trust that reflects both his discretion and his closeness to the Prophet ﷺ personally. This same closeness gave him access to intimate details of the Prophet's ﷺ private worship habits, of exactly the kind preserved in this hadith, making him an important source for reports on devotional life that occurred outside public view.

There were nights I stayed near enough to hear him rise, the soft sounds of a man waking not because anyone required it of him but because his own heart called him to stand before his Lord while the rest of us slept. Before anything else, before even reaching for water, he would take up his siwak, and I would hear the quiet, careful sound of him cleaning his mouth in the darkness, unhurried, as though preparing to meet someone whose presence deserved that small effort. It struck me every time: that even in the deep privacy of night, with no one but Allah to see him, he never let carelessness slip in. (Creative narrative based on authentic hadith)

Modern dental research on Salvadora persica, the tree from which the traditional siwak is most commonly made, has identified natural antibacterial and plaque-reducing compounds in its fibers, and several clinical studies comparing siwak use to modern toothbrushing have found comparable or, in some measures, superior effectiveness in reducing oral bacteria when used correctly, lending empirical support to a practice the Prophet ﷺ maintained centuries before modern dental science existed.

You wake up for Fajr prayer feeling rushed and groggy, tempted to skip straight to the prayer itself to save a few minutes. Considering how deliberately the Prophet ﷺ prioritized even a small act of physical preparation like siwak use before standing in voluntary night prayer, how would you restructure those first few minutes after waking to bring more intentionality into your own preparation, without making the process feel burdensome?