Hasan bin 'Ali (May Allah be pleased with them) said:
I remember (these words) from Messenger of Allah (ﷺ): "Give up what is doubtful to you for that which is not doubtful; for truth is peace of mind and falsehood is doubt".[At- Tirmidhi]. (JA)
Arabic/English book reference (JA): Book 1, Hadith 55 (JA)