Sayyiduna Abu al-Darda' (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "Whoever recites 'La ilaha illallahu wallahu akbar' (There is no deity except Allah, and Allah is the Greatest), Allah Almighty frees a quarter of that person's being from Hell; whoever recites it twice, Allah Almighty frees half of his being from Hell; and if that person recites it four times, Allah Almighty frees him from Hell."
Tabarani recorded it in al-Mu'jam al-Kabir and al-Mu'jam al-Awsat; both contain a narrator, Abu Bakr bin Abi Maryam, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأذكار / 16833
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«أخرجه المعجم الأوسط للطبراني برقم: 8936»