Q 2: Is there a specific Du`a' (supplication) to be said after the Mu'adhin (caller to Prayer) says: "La ilaha illa Allah (there is no god but Allah)" while pronouncing the Iqamah (call to start the Prayer)?

A: It is an act of Sunnah (reported from the Prophet) for those who hear the Iqamah to repeat what the Mu'adhin says, except when he says: "Hay `ala-al-Salah, Hay `ala-al-Falah (come to Salah, come to success)". This is because of the general meaning of the Prophet's saying: When you hear the call (to Prayer), repeat what the Mu'adhin says. (Agreed upon by Al-Bukhari and Muslim) Al-Hafizh Ibn Hajar said that this is proof of the permissibility of repeating what the Mu'adhin says in the Iqamah, in accordance with the Hadith narrated on the authority of `Umar ibn Al-Khattab (may Allah be pleased with him) from the Prophet (peace be upon him): Then when he (the Mu'adhin) says, “Hay `ala-al-Salah,” he (one of you) should say, “La Hawla wala Quwwata illa billah (There is neither might nor power except with Allah).” Then when he (the Mu`adhin) says, “Hay `ala-al-Falah (come to success), he should say, “La Hawla wala Quwwata illa billah.” (Related by Muslim in his Sahih [authentic] Book of Hadith) Al-Bukhari related on the authority of Mu`awiyah (may Allah be pleased with him): When he (the Mu’adhin) says, “Hay `ala-al-Salah,” he says, “La Hawla wala Quwwata illa billah." It is narrated on the authority of Abu Umamah that: When Bilal started to pronounce the Iqamah and reached the phrase, "Qad Qamat-al-Salah (Salah is about to begin)," the Prophet (peace be upon him) said, "Aqamaha Allahu wa adamaha (may Allah keep it established forever)." The Prophet (peace be upon him) repeated the same phrases of the Iqamah as mentioned in the Hadith narrated on the authority of `Umar when pronouncing the Adhan (call to Prayer). Al-Mundhiry commented that there is an unknown narrator in the Sanad (chain of narrators) of this Hadith narrated on the authority of Abu Umamah. It also includes a narrator, called Shahr, in its Sanad whose authenticity is questioned. (Part No. 5; Page No. 78)  Al-Nawawy ranked this Hadith as Da`if (weak) and Munqati` (a Hadith with a missing link after the Follower; the generation after the Prophet’s Companions), as one of its narrators, Shahr ibn Hawshab, did not hear from Ibn Abu Awfa, another narrator in the same Hadith. Therefore, it is prescribed for the person who hears the Iqamah when the Mu'adhin says, "Qad Qamat-al-Salah" to repeat the same words, because of the general meaning of the Hadith narrated on the authority of `Umar (may Allah be pleased with him) and other Hadith to the same effect.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.