'Uqbah bin 'Amir told him, that his sister vowed to walk, barefoot and bareheaded, and he mentioned that to the Messenger of Allah ﷺ He said: "Order her to ride and to cover her head, and to fast for three days."  

وَأَنَّهُ ذَكَرَ ذَلِكَ لِرَسُولِ اللَّهِ ﷺ فَقَالَ مُرْهَا فَلْتَرْكَبْ وَلْتَخْتَمِرْ وَلْتَصُمْ ثَلاَثَةَ أَيَّامٍ  

"The Prophet ﷺ saw an old man walking between his two sons, and he said: What is the matter with him?' His sons said: 'A vow, O Messenger of Allah.' He said: 'Let this old man ride, for Allah has no need of you or your vow."'  

رَأَى النَّبِيُّ ﷺ شَيْخًا يَمْشِي بَيْنَ ابْنَيْهِ فَقَالَ مَا شَأْنُ هَذَا قَالَ ابْنَاهُ نَذْرٌ يَا رَسُولَ اللَّهِ قَالَ ارْكَبْ أَيُّهَا الشَّيْخُ فَإِنَّ اللَّهَ غَنِيٌّ عَنْكَ وَعَنْ نَذْرِكَ