152 – Abū Saʿīd al-Khudrī (may Allah be pleased with him) reported that the Messenger of Allah ﷺ said, “When you hear the call to prayer, say exactly what the mu’adhdhin says.” Agreed upon. (1)

Al-Bukhārī relates the same wording from Muʿāwiyah (may Allah be pleased with him). (2)

Muslim records from ʿUmar (may Allah be pleased with him) that the virtue lies in repeating—word for word—what the mu’adhdhin proclaims, except for the two ḥayʿalahs; in their place one says, “Lā ḥawla wa-lā quwwata illā billāh” (“There is no might and no power except with Allah”). (3)

Glossary of ḥadīth terms
• the two ḥayʿalahs: the dual of ḥayʿalah, a coined word formed from “ḥayya ʿalā al-ṣalāh” (“Come to prayer”) and “ḥayya ʿalā al-falāḥ” (“Come to success”). Such coinage (naḥt) takes parts of two or more words and fuses them into one, as in basmala from “bi-smillāh” and ḥamdala from “al-ḥamdu lillāh.”
• “like what the mu’adhdhin says”: the word “like” (mithla) is in the accusative because it qualifies an omitted verbal noun—i.e., “Say a statement like the statement of the mu’adhdhin.” The term mā is a relative pronoun, and mithl denotes “counterpart” or “equivalent.”
• ḥawl: capacity to act; the meaning is, “There is no turning from disobedience to obedience except through Him.”
• quwwah: strength, power.
• “Lā ḥawla wa-lā quwwata illā billāh”: grammatically, the phrase admits five possible analyses; the soundest is to read both nouns with fatḥah, without