Al-Kāfi - Volume 5 > The Case of Sinful Relation of a Man with a Boy and Marriage with His Daughter or Sister
Hadith #1

1- الْحُسَيْنُ بْنُ مُحَمَّدٍ عَنْ مُعَلَّى بْنِ مُحَمَّدٍ عَنِ الْحَسَنِ بْنِ عَلِيٍّ عَنْ حَمَّادِ بْنِ عُثْمَانَ قَالَ قُلْتُ لأبِي عَبْدِ اللهِ (عَلَيْهِ السَّلام) رَجُلٌ أَتَى غُلاماً أَتَحِلُّ لَهُ أُخْتُهُ قَالَ فَقَالَ إِنْ كَانَ ثَقَبَ فَلا.

1. Al-Husayn from Muhammad has narrated from Mu’alla’ ibn Muhammad from al-Hassan ibn Ali from Hammad ibn ‘Uthaman who has said the following: “This is concerning my question before abu ‘ Abd Allah, ‘Alayhi al-Salam, about the case of a man who commits sinful act with a boy; if he can marry his sister. He (the Imam) said, Tf he made a hole, then he cannot do so (marry).’”