It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "The most truthful in speech is the one who sneezes at the time of that speech."
Al-Tabarani recorded it in al-Mu'jam al-Awsat from his teacher Ja'far bin Muhammad bin Majid, and I do not know him. Its chain contains Imarah bin Zadhan, whom Abu Zur'ah and a group declared thiqah (trustworthy), and there is weakness in him. The rest of its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 12914
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«أخرجه المعجم الأوسط للطبراني برقم: 3384»