Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "No prayer is heavier upon the hypocrites than the Isha and Fajr prayers. If they knew the virtue that lies in these two, they would certainly come to them, even if they had to come crawling."
Imam al-Tabarani recorded this narration in al-Mu'jam al-Kabir, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2150
Hadith Gradingمحدثین:إسنادہ صحیح۔
Hadith Takhrij«المعجم الكبير للطبراني من اسمه عبد الله 9894 ، أخرجه المعجم الكبير للطبراني برقم: 10082»