What is begun with at the first takbir in the funeral prayer, and the second, third and fourth

Al-Sha'bi says: In the first takbir one begins with the praise and glorification of Allah, in the second takbir one sends blessings (durood) upon the Prophet, in the third takbir one supplicates for the deceased, and after the fourth comes the salam.

Al-Ala' bin al-Musayyib narrates from his father that when Sayyiduna Ali (may Allah be pleased with him) offered the funeral prayer, he would begin with the praise of Allah, then send blessings (durood) upon the Prophet, and then recite this supplication: 'Allahumma ighfir li-ahya'ina wa amwatina, wa allif bayna qulubina, wa aslih dhata baynina, waj'al qulubana 'ala qulubi khiyarina' (O Allah, forgive our living and our dead, bring our hearts together, set right the relations between us, and make our hearts like the hearts of the best of us).

Sa'id al-Maqburi says that a man asked Sayyiduna Abu Hurayrah (may Allah be pleased with him): How do you offer the funeral prayer? He said: By Allah, I will tell you. I say the takbir, then I send blessings (durood) upon the Prophet (peace and blessings be upon him), then I recite this supplication: 'Allahumma 'abduka aw amatuka, kana ya'buduka la yushriku bika shay'an, wa anta a'lamu bihi; in kana muhsinan fa-zid fi ihsanihi, wa in kana mukhti'an fa-tajawaz 'anhu. Allahumma la taftinna ba'dahu wa la tahrimna ajrahu' (O Allah, Your male slave or Your female slave used to worship You, not associating anything with You, and You know him best. If he was a doer of good, then increase his good; and if he was at fault, then pardon him. O Allah, do not put us to trial after him and do not deprive us of his reward).

Abu Hashim says: I heard al-Sha'bi say: In the first takbir one should recite the praise and glorification of Allah Almighty, in the second one should send blessings (durood) upon the Prophet (peace and blessings be upon him), in the third one should supplicate for the deceased, and after the fourth is the salam.

Al-Zuhri says: I heard Abu Umamah narrating to Sa'id bin al-Musayyib that the Sunnah way of the funeral prayer is that you first recite Surah al-Fatihah, then send blessings (durood) upon the Prophet (peace and blessings be upon him), then the supplication is made for the deceased until you finish it; and this is recited only once, and then you give the salam quietly to yourself.