Sahih al-Bukhari 6704
Chapter: To vow for something not possessed, and for something sinful
Ibn `Abbas
Narrated Ibn `Abbas:While the Prophet (ﷺ) was delivering a sermon, he saw a man standing, so he asked about that man. They (the people) said, "It is Abu Israil who has vowed that he will stand and never sit down, and he will never come in the shade, nor speak to anybody, and will fast.'' The Prophet (ﷺ) said, "Order him to speak and let him come in the shade, and make him sit down, but let him complete his fast."
Reference
Sahih al-Bukhari 6704
In-book reference
Book 83, Hadith 81
USC-MSA web (English)
Vol. 8, Book 78, Hadith 695
Arabic Text
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا أَيُّوبُ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ بَيْنَا النَّبِيُّ صلى الله عليه وسلم يَخْطُبُ إِذَا هُوَ بِرَجُلٍ قَائِمٍ فَسَأَلَ عَنْهُ فَقَالُوا أَبُو إِسْرَائِيلَ نَذَرَ أَنْ يَقُومَ وَلاَ يَقْعُدَ وَلاَ يَسْتَظِلَّ وَلاَ يَتَكَلَّمَ وَيَصُومَ. فَقَالَ النَّبِيُّ صلى الله عليه وسلم " مُرْهُ فَلْيَتَكَلَّمْ وَلْيَسْتَظِلَّ وَلْيَقْعُدْ وَلْيُتِمَّ صَوْمَهُ ". قَالَ عَبْدُ الْوَهَّابِ حَدَّثَنَا أَيُّوبُ، عَنْ عِكْرِمَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم.