The Sufficient (Vol 4) · Hadith 1160 (#Ḥadīth #5)
Chapter 78 | Matters that Suffice for Ghusl (bath) for al-’Ihram and Those Which Do Not Suffice
5ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ أَبِي حَمْزَةَ قَالَ سَأَلْتُ أَبَا الْحَسَنِ (عَلَيْهِ السَّلاَم) عَنْ رَجُلٍ اغْتَسَلَ لِلإِحْرَامِ ثُمَّ نَامَ قَبْلَ أَنْ يُحْرِمَ قَالَ عَلَيْهِ إِعَادَةُ الْغُسْلِ.
5. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from Ali ibn abu Hamzah who has said the following: “I once asked abu al-Hassan , about a man who takes Ghusl (bath) for Ihram, then sleeps before assuming the state of Ihram. He (the Imam) said, ‘He is required to take Ghusl (bath) again.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).