Hadith 851

'Aishah (May Allah be pleased with her) reported: The Messenger of Allah (PBUH) said to me, "This is Jibril (Gabriel) who is conveying you greetings of peace." I responded: "Wa 'Alaihis-Salamu wa Rahmatullahi wa Barakatuhu (May peace be upon him and the Mercy of Allah and His Blessings)."

[Al-Bukhari and Muslim].