Narrated Hudhaifa (Radi-Allahu ‘anhum):
Whenever the Prophet (Sallallahu ‘Alaihi Wa Sallam) got up at night, he used to clean his mouth with Siwak.
Bukhari Vol. 1 : No. 246
The Prophet (SAS) said: ‘The Dua of a Muslim for his brother (in Islam) in his absence is readily accepted. An Angel is appointed to his side. Whenever he makes a beneficial dua for his brother the appointed Angel says “Ameen”. And may you also be blessed with the same.” (Sahih Muslim)
It has been narrated on the authority of Ibn ‘Umar that the Messenger of Allah (may peace be upon him) said: When Allah will gather together, on the Day of Judgment, all the earlier and later generations of mankind, a flag will be raised (to mark off) every person guilty of breach of faith, and it will be announced that this is the perfidy of so and so, son of so and so (to attract the attention of people to his guilt).
Sahih Muslim, The Book of Jihad and Expedition
