Sunan Ibn Majah — Establishing the Prayer and the Sunnah Regarding Them — Hadith No: 1351
Translation
It was narrated from Hudhaifah that the Prophet (ﷺ) prayed, and when he recited a Verse which mentioned mercy, he would ask for mercy; when he recited a Verse that mentioned punishment he would pray for deliverance from it; and when he recited a Verse that mentioned the Tanzih of Allah, he would glorify Him