Musannaf Ibn Abi Shayba 26:336

Waki’ narrated to us, he said: ‘Umar ibn Bashir al-Hamdani narrated to us, from al-Sha’bi, regarding a child born who has neither what a male has nor what a female has, and who urinates from his navel. He said: "He has half the share of a female and half the share of a male."