It is narrated from Hazrat Abu Qatadah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever, without any valid excuse, misses the Friday prayer three times, a seal is set upon his heart.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 22558
Hadith Gradingحکم دارالسلام:صحيح لغيره، عبدالعزيز بن محمد أخطأ فى إسناده ، والمحفوظ من حديث جابر بن عبدالله