Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:33:70 –

O you who have believed, fear Allah and speak words of appropriate justice.  

O you who believe, fear God and speak words of integrity, what is proper.
القرآن:٣٣:٧٠ –

يَا أَيُّهَا الَّذِينَ آمَنُوا اتَّقُوا اللَّهَ وَقُولُوا قَوْلًا سَدِيدًا  

{يا أيها الذين آمنوا اتقوا الله وقولوا قوْلا سديدا} صوابا.

See similar narrations below:

Collected by Qurʾān
quran:9:119 –

O you who have believed, fear Allah and be with those who are true.  

O you who believe, fear God, by refraining from ˹acts of˺ disobedience to Him, and be with those who are truthful, in ˹their˺ faith and covenants, by adhering to sincerity.
القرآن:٩:١١٩ –

يَا أَيُّهَا الَّذِينَ آمَنُوا اتَّقُوا اللَّهَ وَكُونُوا مَعَ الصَّادِقِينَ  

{يا أيها الذين آمنوا اتقوا الله} بترك معاصيه {وكونوا مع الصادقين} في الإيمان والعهود بأن تلزموا الصدق.