Muwatta 444

A report that Malik transmits from Nu'aym ibn Abdullah al-Mujmir that he heard Abu Hurayra (may God be pleased with him) say, in the chapter on waiting for prayer and walking to it: when one of you prays and then sits on his prayer place, the angels keep praying for him for forgiveness and mercy, and if he rises from his prayer place and sits in the mosque waiting for the prayer, he remains in prayer until he prays. The editor notes that Abu Mus'ab and Suwayd transmitted it as a stopped report, while Muhammad ibn al-Hasan, Isma'il ibn Ja'far, Ibn Wahb, Uthman ibn Umar and al-Walid ibn Muslim transmitted it raised. Ibn Abd al-Barr says it is a sound hadith transmitted by a group of trustworthy transmitters from Abu Hurayra from the Prophet ﷺ (al-Tamhid). ^{1 2}

Belongs to the Muwatta, Book of Prayer. Source: the Muwatta. Mentions Abu Hurayra and Nu'aym ibn Abdullah al-Mujmir. Built on in the chapters on prayer.