Kulayb bin Hazn narrates that I heard the Messenger of Allah (peace and blessings be upon him) say: "O my people, seek Paradise with all your effort and flee from Hell with all your effort, for the one who seeks Paradise does not sleep, and the one who flees from Hell does not sleep either."
Imam al-Tabarani (may Allah have mercy on him) said: "Kulayb bin Hazn did not narrate any hadith with a connected chain from the Messenger of Allah (peace and blessings be upon him) other than this one, and from him this narration is reported only with this chain."
Hadith Referenceالمعجم الأوسط / باب السين / 3643
Hadith Gradingمحدثین:إسناده ضعيف جدًّا، فيه يعلى متروك
Hadith Takhrij«قال ابن حجر: في إسناده يعلى متروك «الإصابة في تمييز الصحابة، ج 9، ص 311»» «أخرجه الطبراني فى «الكبير» برقم: 449»