Musannaf Ibn Abi Shaybah 38964 — The age of maturity: Abu Hanifah said

Bashir bin Yasar relates that Sayyiduna Umar (may Allah be pleased with him) used to send Sayyiduna Abu Hathmah (may Allah be pleased with him) to estimate the date-palms. It is mentioned that the view of (Imam) Abu Hanifah is: He did not hold the view of estimation.