وَحَدَّثَنِي مَالِكٌ، عَنِ الثِّقَةِ، عِنْدَهُ عَنْ يَعْقُوبَ بْنِ عَبْدِ اللَّهِ بْنِ الأَشَجِّ، عَنْ بُسْرِ بْنِ سَعِيدٍ، عَنْ سَعْدِ بْنِ أَبِي وَقَّاصٍ، عَنْ خَوْلَةَ بِنْتِ حَكِيمٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ مَنْ نَزَلَ مَنْزِلاً فَلْيَقُلْ أَعُوذُ بِكَلِمَاتِ اللَّهِ التَّامَّاتِ مِنْ شَرِّ مَا خَلَقَ ‏.‏ فَإِنَّهُ لَنْ يَضُرَّهُ شَىْءٌ حَتَّى يَرْتَحِلَ ‏"‏ ‏.‏

Malik related to me from a reliablesource of his from Yaqub ibn Abdullah al-Ashajj from Bushr ibn Saidfrom Sad ibn Abi Waqqas from Khawla bint Hakim that the Messenger ofAllah, may Allah bless him and grant him peace, said, "Whoeverdismounts to rest in a place should say, 'I seek refuge with thecomplete words of Allah from the evil of what he created,' (audhu bikalimati-llahi at-tammati min sharri ma khalaqa), and nothing willharm him until he remounts." Translation Not Available

Book Ref: Muwatta Imam Malik Book 54 Hadith 1800
Web Ref:  Muwatta Imam Malik Book 54 Hadith 34