Saying ''Amen'' in Salah

Q 1: What is the ruling on saying "Amen" after the Imam's saying: ...nor of those who went astray. ?

A: Saying "Amen" after the Imam's saying: ...nor of those who went astray. Is a Sunnah for the Imam, Ma'mum (a person being led by an Imam in Prayer) and the one who is performing Salah alone. This was reported from Ibn `Umar and Ibn Al-Zubayr. This opinion was also held by Al-Thawry, `Ata', Al-Shafi`y, Yahya ibn Yahya, Is-haq, (Part No. 6; Page No. 422)  Abu Khaythamah, Ibn Abu Shaybah, Sulayman ibn Dawud, and As-hab-ul-Ra'y (scholars, especially the Hanafis, who exercised personal reasoning to make judgments in the absence of clear texts). The evidence for this saying is what was reported by Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace be upon him) said: "Say 'Amen' when the Imam says 'Amen', for if anyone's utterance of 'Amen' coincides with that of the angels, his past sins will be forgiven." This Hadith is reported by Al-Bukhari and Muslim. Wa'il ibn Hujr reported that If the Prophet (peace be upon him) said: ...nor of those who went astray. He used to say 'Amen' in a loud voice. This Hadith was reported by Abu Dawud and Al-Tirmidhy who reported it as: "He said it in a loud voice." He also said that this Hadith is Hasan (a Hadith whose chain of narration contains a narrator with weak exactitude, but is free from eccentricity or blemish.) Imam Ahmad reported on the authority of Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace be upon him) said: "Say 'Amen' when the Imam says "Wala-ddallin" (nor of those who go astray); for the angels say 'Amen' when the Imam says 'Amen'. Thus, a person whose saying of Amen coincides with that of the angels will have all his past sins forgiven." (Part No. 6; Page No. 423) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.