It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Everything has a source, and the source of taqwa (God-consciousness) is the hearts of those who know (Allah)."
Imam al-Tabarani recorded this narration; its chain contains a narrator, Muhammad bin Raja', who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 17944
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«أخرجه المعجم الكبير للطبراني برقم: 13185»