Musnad Ahmad

Ikrimah (may Allah have mercy on him) says that once I said to Sayyiduna Ibn Abbas (may Allah be pleased with them both) that today I performed the Zuhr prayer in the valley of Batha behind an old man, and he said the takbeer twenty-two times in one prayer. He would say the takbeer when going into prostration and when raising his head from it as well. Sayyiduna Ibn Abbas (may Allah be pleased with them both) said, "May your mother lose you! This is how Abu al-Qasim (peace and blessings be upon him) used to pray."