Hadith 14:218
Abu Bakr narrated to us, he said: Waki’ narrated to us, from Abu Makin, who said: I saw Ibn Sirin, and with him was a son. I said to him: "What are you doing here?" He said: "I am cutting such-and-such a vein for my nephew."
حدثنا أبو بكر قال حدثنا وكيع عن أبي مكين قال رأيت بن سيرين عنده بن فقلت له أي شيء تصنع ها هنا فقال أقطع عرق كذا لابن أخي