Arabic hadith text
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَقُولُ صَلاَةُ اللَّيْلِ وَالنَّهَارِ مَثْنَى مَثْنَى يُسَلِّمُ مِنْ كُلِّ رَكْعَتَيْنِ ‏.‏
Translation

Yahya related to me from Malik that he had heard that Abdullahibn Umar used to say, "(Voluntary) prayer in both the day and night istwo at a time with a taslim after every 2 raka'ahs."

Malik said,"That is the custom among us."