‏الصلاة : Hadeeth No:785 This hadith has been narrated by Qatada with the same chain of transmitters that the Messenger of Allaah (sallAllaahu alayhi wa sallam) observed Zuhr prayer and said: I felt that someone amongst you was disputing with me (in what I was reciting)....

‏النكاح : Hadeeth No:3294 'Uqba b. 'Amir said on the pulpit that Allaah's Messenger (sallAllaahu alayhi wa sallam) said: A believer is the brother of a believer, so it is not lawful for a believer to outbid his brother, and he should not propose an engagement when his brother has thus proposed until he gives it up....