رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1145
The Book of Virtues
Inducement to Perform Tahiyyat-ul-Masjid (Upon Entering the Mosque)
وَعَنْ جَابِرٍ، رَضِيَ اللَّهُ عَنْهُ قَالَ: أَتَيْتُ النَّبِيَّ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ وَهُوَ فِي الْمَسْجِدِ فقال: صلِ ركعتين ((مُتَّفَقٌ عَلَيْهِ)).
Jabir (May Allah be pleased with him) reported: I came to the Prophet (ﷺ) when he was in the mosque, and he said to me, "Perform two Rak'ah prayer." [Al-Bukhari and Muslim].
Riyad as-Salihin, 1145