Is it permissible to recite 1 verse or 1/2 of a verse in prayer after al-Fatiha? (Hanbali Fiqh)
Q: Is it permissible to recite 1 verse or 1/2 of a verse in prayer after al-Fatiha?
A: Reciting another chapter after al-Fatiha in the prayer is recommended. It is preferable to recite the additional chapter in its entirety though a protion, such as a single verse, thereof will suffice. If a single verse is read, it’s preferred to be lenghty such as ayat al-Kursi or ayat al-Dayn etc. Source: Sharh al-Muntaha
It has come to my knowledge that some people observe certain nawafil Salah by reciting any specific surah a certain number of times (that is more than once) in each raka’ah after reading Surah Fatiha. Sometimes they make an extra sajdah after reading tashahhud and durood and there, they ask for any specific dua they are in need for. They even call this Salah as Hajat. However I have not come across any kind of this Salah in the Hadith.