Al-Abbas said to the Messenger of Allah ﷺ: We wish to sweep out Zamzam, but in it there are some of these Jinnan, meaning small snakes; so the Messenger of Allah ﷺ ordered that they should be killed.
أَنَّهُ قَالَ لِرَسُولِ اللَّهِ ﷺ إِنَّا نُرِيدُ أَنْ نَكْنِسَ زَمْزَمَ وَإِنَّ فِيهَا مِنْ هَذِهِ الْجِنَّانِ يَعْنِي الْحَيَّاتِ الصِّغَارَ فَأَمَرَ النَّبِيُّ ﷺ بِقَتْلِهِنَّ