On the authority of Abu Hurayrah (may Allah be pleased with him) who said:
The Messenger of Allah (peace and blessings of Allah be upon him) said, “Part of the perfection of one’s Islam is his leaving that which does not concern him.”
(Hadith Nawawi)

Ibn Umar reported: When the Muslims came to Medina, they gathered and sought to know the time of prayer but no one summoned them. One day they discussed the matter, and some of them said: Use something like the bell of the Christians and some of them said: Use horn like that of the Jews...

On the authority of Anas (may Allah be pleased with him), who said: I heard the Messenger of Allah (peace be upon him) say: Allah the Almighty said: O son of Adam, so long as you call upon Me and ask of Me, I shall forgive you for what you have done, and I shall not mind. O son of Adam...

Narrated Anas `Aisha had a Qiram (a thin marked woolen curtain) with which she had screened one side of her home. The Prophet (peace be upon him) said, “Take away this Qiram of yours, as its pictures are still displayed in front of me during my prayer (i.e. they divert my attention...

Narrated Ibn ‘Abbas Allah’s Messenger (peace be upon him) was the most generous of all the people, and he used to reach the peak in generosity in the month of Ramadan when Gabriel met him. Gabriel used to meet him every night of Ramadan to teach him the Qur’an...