The Messenger of Allah ﷺ said, "The angels continue to pray for one of you as long as he remains in the place where he prayed, so long as he does not break his ablution. They say, 'Allah, forgive him. Allah, have mercy on him.'"
أخبرنا قتيبة عن مالك عن أبي الزناد عن الأعرج
أن رسول الله ﷺ قال إن الملائكة تصلي على أحدكم ما دام في مصلاه الذي صلى فيه ما لم يحدث اللهم اغفر له اللهم ارحمه
Isnad grading, [Its chain is daif]Tabarani reported it (al-Kabir: 22/303, 304, no. 770) from the hadith of Layth bin Saad, with this wording, and it is also in al-Kubra, no. 811. Marwan bin Uthman was judged daif by Nasai and the majority of scholars.