Mishkat al-Masabih #596
Prayer
The Arabic includes the chain of narration (sanad) and the collector's commentary; the English translation shows the Prophet's words only.
عَن ابْن عمر قَالَ: كَانَ الْأَذَانُ عَلَى عَهْدِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَرَّتَيْنِ مَرَّتَيْنِ وَالْإِقَامَةُ مَرَّةً مَرَّةً غَيْرَ أَنَّهُ كَانَ يَقُولُ: قَدْ قَامَتِ الصَّلَاةُ قَدْ قَامَتِ الصَّلَاةُ. رَوَاهُ أَبُو دَاوُد وَالنَّسَائِيّ والدارمي
Ibn ‘Umar said that in the time of God's Messenger the phrases in the adhan were uttered twice each and in the iqama once each, except for saying, ‘‘The time for prayer has come. The time for prayer has come.”
Abu Dawud, Nasai and Darimi transmitted it.
About Mishkat al-Masabih
This hadith is #596 from Mishkat al-Masabih, in the Book of Prayer.