Hadith 276
´It was narrated from Abu Sa'eed Al-Khudri that:` The Messenger of Allah said: "The key to prayer is purification, its opening is to say Allahu Akbar and its closing is to say As-salamu 'alaikum."
Hadith 520
´It was narrated that Jabir bin 'Abdullah said:` "We came to a pond in which there was the carcass of a donkey, so we refrained from using the water until the Messenger of Allah came to us and said: 'Water is not made impure by anything.' Then we drank from it and gave it to our animals to drink, and we carried some with us."
Hadith 839
´It was narrated that Abu Sa’eed said:` “The Messenger of Allah (ﷺ) said: ‘There is no prayer for the one who does not recite in every Rak’ah: Al-Hamd (Al-Fatihah) and a Surah whether in an obligatory prayer or another.’”