حِصْنُ الْمُسْلِمِ
Hisn al-Muslim 258
Fortress of the Muslim (Hisn al-Muslim)
Excellence of Tasbih, Tahmid, Tahlil, and Takbir
وَقَالَ صلى الله عليه وسلم: أَيَعْجِزُ أَحَدُكُم أَنْ يَكْسِبَ كُلَّ يَوْمٍ أَلْفَ حَسَنَةٍ؟ فَسَأَلَهُ سَائِلٌ مِنْ جُلَسَائِهِ كَيْفَ يَكْسِبُ أَحَدُنَا أَلْفَ حَسَنَةٍ؟ قَالَ: يُسَبِّحُ مِائَةَ تَسْبِيحَةٍ، فَيُكتَبُ لَهُ أَلْفُ حَسَنَةٍ أَوْ يُحَطُّ عَنْهُ أَلْفُ خَطِيئَةٍ.
-- Allah's Messenger (ﷺ) said: "Is anyone of you incapable of earning one thousand Hasanah (rewards) in a day?" Someone from his gathering asked, "How can anyone of us earn a thousand Hasanah?" He said, "Glorify Allah a hundred times and a thousand Hasanah will be written for you, or a thousand sins will be wiped away." Reference: Muslim 4/2073.
Hisn al-Muslim, 258