The Messenger of Allah ﷺ said, "Allah and His angels send blessings upon those on the right side of the rows."
حدثنا عثمان بن أبي شيبة حدثنا معاوية بن هشام حدثنا سفيان عن أسامة بن زيد عن عثمان بن عروة عن عروة
قال رسول الله ﷺ إن الله وملائكته يصلون على ميامن الصفوف
[Hasan]. Ibn Majah narrated it in Iqamat al-Salawat, chapter on the merit of the right side of the row, no. 1005, from Uthman bin Abu Shayba with this wording. Ibn Khuzayma graded it sahih, no. 1550, as did Ibn Hibban, no. 393, 394, and Hakim, on the standard of Muslim, 1/214, and Dhahabi agreed with him. The wording of Ibn Khuzayma and others is, "upon those who pray in the rows."