حَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، رَكِبَ إِلَى ذَاتِ النُّصُبِ فَقَصَرَ الصَّلاَةَ فِي مَسِيرِهِ ذَلِكَ ‏.‏ قَالَ مَالِكٌ وَبَيْنَ ذَاتِ النُّصُبِ وَالْمَدِينَةِ أَرْبَعَةُ بُرُدٍ ‏.‏

Yahya related to me from Malik from Nafi from Salim ibn Abdullahthat Abdullah ibn Umar rode to Dhat an-Nusub and shortened the prayeron the journey. Malik said, "There are four mail-stagesbetween Dhat an-Nusub and Madina." Translation Not Available

Book Ref: Muwatta Imam Malik Book 9 Hadith 341
Web Ref:  Muwatta Imam Malik Book 9 Hadith 13