Umar bin Khattab wrote to one of his governors instructing him to provide the Muslims with tila, the kind in which two thirds have evaporated and one third remains.
أخبرنا محمد بن عبد الأعلى قال حدثنا المعتمر قال سمعت منصورا عن إبراهيم عن نباتة
كتب عمر بن الخطاب إلى بعض عماله أن ارزق المسلمين من الطلاء ما ذهب ثلثاه وبقي ثلثه
[Its chain of transmission is daif] It is in Al-Kubra, hadith no. 5224. Nubata is obscure, and there is another flaw in it.