It is narrated from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "What I fear most for my Ummah is the Book (the Qur'an) and milk. As for milk, it will be opened up for some people, so they will abandon the Friday and the Friday prayers; and as for the Qur'an, it will be opened up for some people (that is, they will learn to read it), so they will dispute with the believers by means of it."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14887
Sayyiduna Uqbah bin Amir (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "What I fear most for my Ummah is milk and the Book" (or he said: "the thing I fear most"). It was said: O Messenger of Allah, what is the matter with milk? He (peace and blessings be upon him) said: "They will leave the congregations and abandon the Friday prayers." It was said: O Messenger of Allah, what is the matter with the Book? He (peace and blessings be upon him) said: "It will be opened up for some people, so they will read it and dispute by means of it."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14888
Sayyiduna Uqbah bin Amir (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say: "Some people of my Ummah will perish because of the Book and milk." Sayyiduna Uqbah (may Allah be pleased with him) said: I said: Who are the people of the Book? He (peace and blessings be upon him) said: "People who learn the Book of Allah and dispute by means of it with the believers." I said: O Messenger of Allah, who are the people of milk? He (peace and blessings be upon him) said: "People who follow desires and neglect the prayers."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14889
Sayyiduna Uqbah bin Amir (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) said: "What I fear most for my Ummah is two things: that they follow the verses and desires and abandon the Qur'an and the prayers, and that the hypocrites learn it and dispute by means of it with the people of knowledge."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14890