Ayesha reported,

Whenever it was her night with the Messenger of Allah ﷺ, he would go out toward the end of the night to al-Baqi and say, "Peace be upon you, abode of a believing people. What you were promised has come to you, deferred until tomorrow, and we, Allah willing, will join you. Allah, forgive the people of Baqi al-Gharqad."

Azami 11111

Sahih

عن عائشة قالت

كان رسول الله ﷺ كلما كان ليلتها من رسول الله ﷺ يخرج من آخر الليل إلى البقيع فيقول: السلام عليكم دار قوم مؤمنين، وأتاكم ما توعدون غدا مؤجلون، وإنا إن شاء الله بكم لاحقون، اللهم اغفر لأهل بقيع الغرقد.

الأعظمي 11111صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Supplications, remembrances, and prayer upon the chosen Prophet ﷺ
Chapter
Supplications for illness and funerals, and what relates to them
Section
Supplication for visiting graves
Numbering
Jami al-Kamil 11111 (2nd edition)
Azami 11111