It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "If a single bucket from Hell were placed in the middle of the earth, its stench and the intensity of its heat would torment everyone living between the east and the west; and if a single spark from the sparks of Hell were in the east, the one living in the west would feel its heat."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from al-Hasan except Tammam bin Najih."
Hadith Referenceالمعجم الأوسط / باب الطاء / 3681
Hadith Gradingمحدثین:إسناده ضعيف لضعف تمام بن نجيح
Hadith Takhrij«قال الهيثمي: فيه تمام بن نجيح وهو ضعيف وقد وثق وبقية رجاله أحسن حالا من تمام «مجمع الزوائد ومنبع الفوائد، ج 10، ص 387»»