A hundred tasbihs: a thousand good deeds

مائة تسبيحة: ألف حسنة

The Prophet asked those sitting with him whether any of them was unable to earn a thousand good deeds every day, then explained that whoever says a hundred tasbihs has a thousand good deeds written for him or a thousand sins shed, in Sa'd ibn Abi Waqqas's narration in Muslim Sahih Muslim 6852 — a stated number of good deeds; the writing of good deeds; al-Tirmidhi's wording joins the two with "and" Jami' al-Tirmidhi 3463 — a stated number of good deeds; the writing of good deeds. The arithmetic is plain: each tasbih is a good deed, a good deed counts ten, and a hundred makes a thousand. The calculator puts the thousand in the good-deeds column and names the shedding in the result line, because the two wordings differ.