(53) باب ذِكْرِ مَا يَجُوزُ شُرْبُهُ مِنَ الطِّلاَءِ وَمَا لاَ يَجُوزُ
It was narrated that 'Amir bin 'Abdullah said:
"I saw the letter of 'Umar bin Al-Khattab to Abu Musa (in which he said): 'A caravan came to me from Ash-Sham carrying a thick black paint like the pitch that is daubed on camels. I asked them how long they cooked it, and they told me that they cooked it until it was reduced by two-third. So the bad two-third had gone, one-third to take away evil and one-third to take away the bad smell. So let those who are with you drink it."
Reference: Sunan an-Nasa'i 5716
In-book reference: Book 51, Hadith 178
English translation: Vol. 6, Book 51, Hadith 5719