Jabir reported Allah's Apostle ( ﷺ) came to the grave of 'Abdullah b. Ubayy, brought him out from that, placed him on his knee and put his saliva in his mouth and shrouded him in his own shirt and Allah knows best.
أَنَّهُ سَمِعَ جَابِرًا يَقُولُ أَتَى النَّبِيُّ ﷺ قَبْرَ عَبْدِ اللَّهِ بْنِ أُبَىٍّ فَأَخْرَجَهُ مِنْ قَبْرِهِ فَوَضَعَهُ عَلَى رُكْبَتَيْهِ وَنَفَثَ عَلَيْهِ مِنْ رِيقِهِ وَأَلْبَسَهُ قَمِيصَهُ فَاللَّهُ أَعْلَمُ