A man asked, "Messenger of Allah, is there recitation in every prayer?"He replied, "Yes."A man from the Ansar said, "This has become obligatory."
حدثنا عبد الرحمن عن معاوية يعني ابن صالح عن أبي الزاهرية عن كثير بن مرة
أن رجلا قال يا رسول الله أفي كل صلاة قراءة قال نعم فقال رجل من الأنصار وجبت هذه
Its isnad is sahih. Abu Zahiriyya is Hudayr bin Kurayb, a trustworthy narrator, frequently referred to by his kunya. Kathir bin Mura Hadrami Himsi was one of the senior, trustworthy Mukhadramin among the Tabiin. The hadith has already appeared under Abu Hurairah at 9723.