It is narrated from Sayyiduna Ka'b bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Some people hear the call on Friday and yet do not come to the prayer; they must certainly desist from this, or else Allah will set a seal upon their hearts, and then they will be among the heedless."
Hadith Referenceالمعجم الكبير للطبراني / باب الكاف / 16247