"Alqamah bin Wa'il told us that his father said: "I saw the Messenger of Allah (ﷺ), when he was standing in prayer, holding his left hand with his right.'"
X"I heard Abu Uthman narrate that Ibn Mas'ud said: 'The Prophet (ﷺ) saw me when I had placed my left hand on my right in prayer. He took hold of my right hand and placed it on my left.'"
"I said: 'I am going to watch how the Messenger of Allah (ﷺ) prays.' So I watched him and he stood and said the takbir, and raised his hands until they were in the level with his ears, then he placed his right hand over his left hand, wrist and lower forearm. When he wanted to bow he raised his hands likewise. Then he prostrated and placed his hands in level with his ears. Then he sat up and placed his left leg under him; he put his left hand on his left thigh and knee, and he put the edge of his right elbow on his right thigh, then he held two of his fingers together and made a circle, and raised his forefinger, and I saw him moving it and supplicating with it."
"I prayed beside Ibn Umar and put my hand on my waist, and he did this to me-knocked it with his hand. When I had finished praying I said to a man: 'Who is this?' He said: "Abdullah bin Umar.' I said: 'O Abu Abdur-Rahman, why are you angry with me?' He said: 'This is the posture of crucifixion, and the Mesenger of Allah (ﷺ) forbade us to do this.'"
Abdullah saw a man who was praying with his feet together. He said: "He is going against the Sunnah; if he shifted his weight from one to the other that would be better."
He saw a man praying with his feet together. He said: "He is not following the Sunnah. If he were to shift his weight from one to the other I would like that better."
"When the Messenger of Allah (ﷺ) started to pray he would pause briefly. I said: 'May my father and mother be ransomed for you, O Messenger of Allah, what do you say when you pause briefly between the takbir and reciation?' He said: 'I say: Allahuma ba'id bayni wa bayna khatayaya kama ba'adta bayna al-mashriqi wal-maghrib; Allahumma naqqini min khatayaya kama yunaqqa ath-thawb al-abyad min ad-danas; Allahumma ighsilni min khatayaya bil ma'i wa ath-thalji wal-barad. (O Allah, put a great distance between me and my sins, as great as the distance You have made between the East and the West; O Allah, cleanse me of my sins as a white garment is cleansed from filth; O Allah, wash away my sins with water and snow and hail).'"
"When the Prophet (ﷺ) started to pray, he would say the takbir, then say: 'Inna salati wa nusuki wa mahyaya wa mamati lillahi rabbil-alamin, la sharika lahu, wa bidhalika umirtu wa ana min al-muslimin. Allahummahdini liahsanil-amali wa ahsanil-akhlaqi la yahdi li ahsaniha illa anta wa qini sayy'al-a'mali wa sayy'al-ahaqi la yaqi sayy'aha illa ant. (Indeed my salah (prayer), my sacrifice, my living, and my dying are for Allah, the Lord of all that exists. He has no partner. And of this I have been commanded, and I am one of the Muslims. O Allah, guide me to the best of deeds and the best of manners, for none can guide to the best of them but You. And protect me from bad deeds and bad manners, for none can protect against them but You.) "