A man from Banu Thaqif informed Sayyiduna Umar bin Aws (may Allah be pleased with him) that on a rainy day, he heard the Mu’adhdhin of the Messenger of Allah (peace and blessings be upon him) say, after“Hayya ‘ala as-Salah, Hayya ‘ala al-Falah”:“Sallu fi rihalikum”(Pray in your homes).