ENOfficial
Narrated Malik: One should not exceed al-Mu'arras when one returns to Medina until one prays there as much as one wishes, for I have been informed that the Messenger of Allah (ﷺ) halted there at night. Abu Dawud said: I heard Muhammad b. Ishaq al-Madini say: Al-Mu'arras lies at a distance of six miles from Medina.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا الْقَعْنَبِيُّ، قَالَ قَالَ مَالِكٌ لاَ يَنْبَغِي لأَحَدٍ أَنْ يُجَاوِزَ الْمُعَرَّسَ إِذَا قَفَلَ رَاجِعًا إِلَى الْمَدِينَةِ حَتَّى يُصَلِّيَ فِيهَا مَا بَدَا لَهُ لأَنَّهُ بَلَغَنِي أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم عَرَّسَ بِهِ . قَالَ أَبُو دَاوُدَ سَمِعْتُ مُحَمَّدَ بْنَ إِسْحَاقَ الْمَدَنِيَّ قَالَ الْمُعَرَّسُ عَلَى سِتَّةِ أَمْيَالٍ مِنَ الْمَدِينَةِ .
sunnah.com