The words of adhan were pronounced from the time of the Messenger of Allah ﷺ twice in pairs (i.e. four times) each, and the words of iqamah were pronounced once in pairs (twice each), except that the phrase "The time for prayer has come" would be pronounced twice. When we heard iqamah, we would perform ablution, and go out for prayer. Shu'bah said: I did not hear AbuJa'far narrating any other tradition except this one. (Using translation from Abū Dāʾūd 510)   

سَمِعْتُ ابْنَ عُمَرَ يَقُولُ كَانَ الْأَذَانُ عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ مَرَّتَيْنِ مَرَّتَيْنِ وَالْإِقَامَةُ مَرَّةً مَرَّةً غَيْرَ أَنَّهُ يَقُولُ قَدْ قَامَتِ الصَّلَاةُ مَرَّتَيْنِ فَإِذَا سَمِعْنَا الْإِقَامَةَ تَوَضَّأْنَا ثُمَّ خَرَجْنَا إِلَى الصَّلَاةِ «»  

"The Messenger of Allah ﷺ commanded Bilal to say the phrases of the Adhan twice and the phrases of the Iqamah once." (Using translation from Nasāʾī 627)  

أَنَّ رَسُولَ اللَّهِ ﷺ «أَمَرَ بِلَالًا أَنْ يَشْفَعَ الْأَذَانَ وَيُوتِرَ الْإِقَامَةَ»  

[Machine] The Messenger of Allah ﷺ ordered Bilal to give the call to prayer and perform the qiyam (night prayer). The two shaykhs did not mention this context, but it is correct according to their condition.  

أَنَّ رَسُولَ اللَّهِ ﷺ «أَمَرَ بِلَالًا أَنْ يَشْفَعَ الْأَذَانَ وَيُوتِرَ الْإِقَامَةَ» «وَالشَّيْخَانِ لَمْ يُخَرِّجَا بِهَذِهِ السِّيَاقَةِ وَهُوَ صَحِيحٌ عَلَى شَرْطِهِمَا»  

[Machine] He informed him that the Messenger of Allah ﷺ said: There are two things that are not rejected or rarely rejected: supplication when called upon, and supplication during a time of hardship when they are fighting against each other.  

أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ ثِنْتَانِ لَا تُرَدَّانِ أَوْ قَلَّمَا تُرَدَّانِ الدُّعَاءُ عِنْدَ النِّدَاءِ وَعِنْدَ الْبَأْسِ حِينَ يُلْحِمُ بَعْضُهُمْ بَعْضًا «»  

[Machine] The Prophet Muhammad ﷺ said, "Prayer is answered as long as the caller does not rush."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «الدُّعَاءُ مُسْتَجَابٌ مَا بَيْنَ النِّدَاءِ»  

The Messenger of Allah ﷺ taught me to say when the adhan for the sunset prayer was called; "O Allah, this is the time when Thy night comes on, Thy day retires, and the voices of Thy summoners are heard, so forgive me." (Using translation from Abū Dāʾūd 530)  

عَلَّمَنِي رَسُولُ اللَّهِ ﷺ أَنْ أَقُولَ عِنْدَ آذَانِ الْمَغْرِبِ «اللَّهُمَّ هَذَا إِقْبَالُ لَيْلِكَ وَإِدْبَارُ نَهَارِكَ وَأَصْوَاتُ دُعَاتِكَ فَاغْفِرْ لِي»  

Messenger of Allah, appoint me the leader of the tribe in prayer. He said: You are their leader, but you should follow on who is the weakest of them: and appoint a mu'adhdhin who does not charge for the calling of adhan. (Using translation from Abū Dāʾūd 531)   

أَنَّهُ قَالَ يَا رَسُولَ اللَّهِ اجْعَلْنِي إِمَامَ قَوْمِي قَالَ «أَنْتَ إِمَامُهُمْ وَاقْتَدِ بِأَضْعَفِهِمْ وَاتَّخِذْ مُؤَذِّنًا لَا يَأْخُذُ عَلَى أَذَانِهِ أَجْرًا» عَلَى شَرْطِ مُسْلِمٍ وَلَمْ يُخَرِّجَاهُ  

The extent of the shadow when the Messenger of Allah prayed (the noon prayer) was three to five feet in summer and five to seven feet in winter. (Using translation from Abū Dāʾūd 400)   

«كَانَ قَدْرُ صَلَاةِ رَسُولِ اللَّهِ ﷺ ثَلَاثَةَ أَقْدَامٍ وَفِي الشِّتَاءِ خَمْسَةُ أَقْدَامٍ إِلَى سَبْعَةِ أَقْدَامٍ»  

The Messenger of Allah ﷺ taught me and what he taught me is this: Observe the five prayers regularly. He said: I told (him): I have many works at these times; so give me a comprehensive advice which, if I follow, should be enough for me. He said: Observe the two afternoon prayers (al-asrayn). But the term al-asrayn (two afternoon prayers) was not used in our language. Hence I said: What is al-asrayn? He said: A prayer before the sunrise and a prayer before the sunset (i.e. the dawn and the afternoon prayers). (Using translation from Abū Dāʾūd 428)  

عَلَّمَنِي رَسُولُ اللَّهِ ﷺ فَكَانَ مِمَّا عَلَّمَنِي «حَافِظْ عَلَى الصَّلَوَاتِ الْخَمْسِ» فَقُلْتُ إِنَّ هَذِهِ سَاعَاتٌ لِي فِيهَا أَشْغَالٌ فَمُرْنِي بِأَمْرٍ جَامِعٍ إِذَا أَنَا فَعَلْتُهُ أَجْزَأَ عَنِّي فَقَالَ «حَافِظْ عَلَى الْعَصْرَيْنِ» وَمَا كَانَتْ مِنْ لُغَتِنَا فَقُلْتُ وَمَا الْعَصْرَانِ؟ قَالَ «صَلَاةٌ قَبْلَ طُلُوعِ الشَّمْسِ وَصَلَاةٌ قَبْلَ غُرُوبِهَا»