It was narrated from Ziyad an-Numairi that Anas bin Malik (رضي الله عنه) said: When Rajab began, the Prophet (ﷺ) would say:

"O Allah, bless Rajab and Sha'ban for us, and bless Ramadan for us.” And he used to say: “The night before Friday is beautiful and its day is bright and shiny."