Sunan at-Tirmidhi

‘Ukraash bin Dhu’ayb (may Allah be pleased with him) says that the Banu Murrah bin ‘Ubayd sent me with their zakat wealth to the Messenger of Allah (peace and blessings of Allah be upon him). I came to him in Madinah and found him sitting among the Muhajirun and Ansar. Then he took my hand and brought me to the house of Umm Salamah (may Allah be pleased with her) and asked: “Is there anything to eat?” So a bowl was brought in which there was mostly tharid (bread soaked in broth) and pieces of meat. We turned to eat it. I began to move my hand around the edges of the bowl, while the Messenger of Allah (peace and blessings of Allah be upon him) ate from what was in front of him. Then he took my right hand with his left and said: “Ukraash! Eat from one place, for this is one kind of food.” Then a tray was brought to us in which there were various kinds of dates. I began to eat from what was in front of me, and the hand of the Messenger of Allah (peace and blessings of Allah be upon him) moved about in the tray. He said: “Ukraash! Eat from wherever you wish, for this is not one kind.” Then water was brought to us. The Messenger of Allah (peace and blessings of Allah be upon him) washed his hands and wiped his face, arms, and head with the moisture of his palms, and said: “Ukraash! This is the ablution after eating something cooked over fire.” © Imam Tirmidhi says:
1- This hadith is ghareeb (strange/rare),
2- We know it only from the narration of ‘Alaa bin Fadl; ‘Alaa is unique in narrating this hadith,
3- We know only this hadith from the Prophet (peace and blessings of Allah be upon him) from Ukraash.