The Sufficient (Vol 4) · Hadith 1113 (#Ḥadīth #10)
Chapter 72 | The Case of One Who Performs al-Hajj on Behalf of His Relatives, Partially or Altogether
10ـ أَحْمَدُ بْنُ عَبْدِ الله عَنْ أَحْمَدَ بْنِ أَبِي عَبْدِ الله عَنْ أَبِي عِمْرَانَ الأَرْمَنِيِّ عَنْ عَلِيِّ بْنِ الْحُسَيْنِ عَنْ مُحَمَّدِ بْنِ الْحَسَنِ عَنْ أَبِي الْحَسَنِ (عَلَيْهِ السَّلاَم) قَالَ قَالَ أَبُو عَبْدِ الله (عَلَيْهِ السَّلاَم) لَوْ أَشْرَكْتَ أَلْفاً فِي حَجَّتِكَ لَكَانَ لِكُلِّ وَاحِدٍ حَجَّةٌ مِنْ غَيْرِ أَنْ تَنْقُصَ حَجَّتُكَ شَيْئاً.
10. Ahmad ibn ‘Abd Allah has narrated from Ahmad ibn abu ‘Abd Allah from abu ‘Imran al-Armaniy from Ali ibn al-Husayn from Muhammad ibn al-Hassan who has said the following: “Abu al-Hassan , has said that abu ‘ Abd Allah , has said, ’Even if you share your al-Hajj with a thousand people, still there will be one al-Hajj for every one without any reduction in your al-Hajj.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).