The Sufficient (Vol 3) · Hadith 876 (#Ḥadīth #10)
Chapter 85 | Visiting of the Graves
10ـ أَحْمَدُ بْنُ مُحَمَّدٍ الْكُوفِيُّ عَنِ ابْنِ جُمْهُورٍ عَنْ أَبِيهِ عَنْ مُحَمَّدِ بْنِ سِنَانٍ عَنْ مُفَضَّلِ بْنِ عُمَرَ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) وَعَنْ عَبْدِ الله بْنِ عَبْدِ الرَّحْمَنِ الأصَمِّ عَنْ حَرِيزٍ عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ قَالَ أَمِيرُ الْمُؤْمِنِينَ (عَلَيْهِ الْسَّلام) زُورُوا مَوْتَاكُمْ فَإِنَّهُمْ يَفْرَحُونَ بِزِيَارَتِكُمْ وَلْيَطْلُبْ أَحَدُكُمْ حَاجَتَهُ عِنْدَ قَبْرِ أَبِيهِ وَعِنْدَ قَبْرِ أُمِّهِ بِمَا يَدْعُو لَهُمَا.
10. Ahmad ibn Muhammad al-Kufi has narrated from Ibn Jumhur from his father from Muhammad ibn Sinan from al-Mufaddal ibn ‘Umar from Abu 'Abdillah (al-Sadiq) , and so has ‘Abdullah ibn ‘Abdul Rahman al-Asamm from Hariz from Muhammad ibn Muslim that Abu 'Abdillah (al-Sadiq) said that Amir al-Mu’minin said: "Visit your dead people for they become happy due to your visit. One of you should ask for his wishes near the grave of his father and near the grave of his mother, with supplications for them [that they'll be pleased with]."
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).