Musannaf Ibn Abi Shaybah 3865 — Those who did not offer voluntary

Hafs said: We set out with Sayyiduna Ibn Umar (may Allah be pleased with them both). We offered the obligatory prayer, and he saw one of his children offering a voluntary prayer, so he said: I have prayed with the Messenger of Allah (peace and blessings be upon him), Sayyiduna Abu Bakr, Sayyiduna Umar and Sayyiduna Uthman, and during travel they offered no prayer before the obligatory prayer nor after it. If I were to offer voluntary prayers, I would have completed the obligatory prayer (in full).