[Machine] If a person vows to walk to the Kaaba, then this is a vow, so they should walk to the Kaaba. Ibn Wahb said, "Al-Layth said the same thing."
إِذَا نَذَرَ الْإِنْسَانُ عَلَى مَشْيٍ إِلَى الْكَعْبَةِ فَهَذَا نَذْرٌ فَلْيَمْشِ إِلَى الْكَعْبَةِ قَالَ ابْنُ وَهْبٍ قَالَ اللَّيْثُ مِثْلَهُ