‏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....

‏الصلاة : Hadeeth No:920 Qutba b. Malik reported: I said prayer and the Messenger of Allaah (sallAllaahu alayhi wa sallam) led it and he recited" Qaf. (I.). By the Glorious Qur'an," till he recited" and the tall palm trees" (l. 10). I wanted to repeat it but I could not follow its significance....