Riyad as-Salihin #1798

'Aishah (May Allah be pleased with her): reported Whenever it was her turn to spend with Messenger of Allah (ﷺ), he used to go to the Baqi' (graveyard in Al-Madinah) at the last part of night and say, "May you be safe, O abode of the believing people. What you have been promised has come to you. You are tarried till tomorrow and certainly we shall follow you if Allah wills. O Allah, forgive the inmates of the Baqi'-al-Gharqad.".