‏النكاح : Hadeeth No:3238 Sa'id b. al-Musayyib reported: I heard Sa'd (b. Abi Waqqas) saying that the idea of 'Uthman b. Maz'un for living in celibacy was rejected (by the Prophet), and if he had been given permission they would have got themselves castrated....

‏الصلاة : Hadeeth No:1098 Zaid b. Arqam reported: We used to talk while engaged in prayer and a person talked with a companion on his side in prayer till (this verse) was revealed:" And stand before Allaah in devout obedience" (ii, 238) and we were commanded to observe silence (in prayer) and were forbidden to speak....