It is narrated from Sayyiduna Anas (may Allah be pleased with him) that when the month of Rajab would begin, the Prophet (peace and blessings be upon him) would supplicate: «اَللّٰهُمَّبَارِكْلَنَافِيرَجَبٍوَشَعْبَانَوَبَارِكْلَنَافِيرَمَضَانَ» "O Allah! Bless us in the months of Rajab and Sha'ban and grant us the blessings of Ramadan." He would also say, "The night of Friday is radiant and its day is shining."
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2346
Hadith Gradingحکم دارالسلام:إسناده ضعيف، زائدة ابن أبى الرقاد ضعيف، وهذا الحديث من مسند أنس