When the Noble Prophet (S) was seven years of age, the Jews (having perceived signs of Prophethood in him and therefore deciding to test him) discussed amongst themselves: “We have read in our Scriptures that the Prophet will distance himself from unlawful and dubious food, so let us test him.”
Thus, they stole a fowl and gifted it to Abu Talib so that the members of his family could eat it. All of them ate, except for the Noble Prophet (S) who did not touch the food. When questioned, he replied: “This fowl is unlawful and Allah has protected me from unlawful things.”
After this incident, the Jews got hold of a neighbour’s fowl with the intention of paying him later and sent it to Abu Talib, but once again the Noble Prophet (S) refused to eat the food, saying: “This food is dubious (with respect to its lawfulness).”
When the Jews came to know of these incidents, they commented, “This child shall come to possess a lofty rank and status.”( Dars-hai Az Zindagi-e-Payambar, Page 31; Biharul Anwar, Volume 15, Page 336 )