Mishkat al-Masabih 5 Funerals كتاب الجنائز 241

وَعَنِ ابْنِ مَسْعُودٍ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «كُنْتُ نَهَيْتُكُمْ عَنْ زِيَارَةِ الْقُبُورِ فَزُورُوهَا فَإِنَّهَا تُزَهِّدُ فِي الدُّنْيَا وتذكر الْآخِرَة» . رَوَاهُ ابْن مَاجَه

Ibn Mas’ud reported God’s messenger as saying, “I forbade you to visit graves, but you may now visit them, for they produce abstinence in this world and act as a reminder of the next.” Ibn Majah transmitted it.