Bismillah hir-Rahman nir-Rahim
Mafhum-e-Hadith: Farishtey us Namazi ke liye Maghfirat ki Dua kartey hain
Abu Hurirah Radiallahu anhu se rivayat hai ki Rasoollallahu Sallallahu Alaihi Wasallam ne farmaya farishtey tum mein se us namazi ke liye us waqt tak yu hi Dua kartey rahtey hain jab tak (namaz Parhney ke baad) wo apney musalley par baitha rahey aur hadas ( hawa kharij) na karey ki Eh Allah iski maghfirat farma , Eh Allah is par raham farma. Tum main se wo shkash jo sirf namaz ki wajah se ruka hua hai ghar janey se siwa namaz ke aur koj cheez uskey liye aham nahi , to uska (ye sara waqt) namaz hi mein shumar hoga.
Sahih Bukhari, Vol1, 659
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Narrated Abu Huraira Radiallahu anhu : Allah's Apostle Sallallahu Alaihi Wasallam said, "The angels keep on asking for Allah's Blessing and Forgiveness for anyone of you as long as he is at his Musalla (praying place) and does not do Hadath (passes wind). The angels say, 'O Allah! Forgive him and be Merciful to him.' Each one of you is in the prayer as long as he is waiting for the prayer and nothing but the prayer detains him from going to his family."
Sahih Bukhari, Vol 1, Book 11, No. 628: