22 – Nāfiʿ narrated from Ibn ʿUmar (may Allah be pleased with them both), who said:

ʿUmar ibn al-Khaṭṭāb (may Allah be pleased with him) declared, “During the jāhiliyya—the pre-Islamic period—I vowed to perform iʿtikāf (a devotional retreat) in the Sacred Mosque. When I later embraced Islam, I asked the Messenger of Allah ﷺ about it, and he replied, ‘Fulfil your vow.’”