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:21:109 –

But if they turn away, then say, "I have announced to ˹all of˺ you equally. And I know not whether near or far is that which you are promised.  

But if they turn away, from this, say: ‘I have proclaimed to you, I have notified you of ˹my declaration of˺ war ˹on you˺, all alike (‘alā sawā’ is a circumstantial qualifier referring to both the subject of the verb and the object) that is to say, you are ˹all˺ equal in having knowledge of this: I shall not proceed independently without ˹having first informed˺ you, in order for you to make preparations, although I do not know whether near or far is that which you have been promised’, with respect to chastisement, or to the ˹Day of˺ Resurrection that comprises this ˹chastisement˺; only God knows it.
القرآن:٢١:١٠٩ –

فَإِنْ تَوَلَّوْا فَقُلْ آذَنْتُكُمْ عَلَىٰ سَوَاءٍ ۖ وَإِنْ أَدْرِي أَقَرِيبٌ أَمْ بَعِيدٌ مَا تُوعَدُونَ  

{فإن تولوا} عن ذلك {فقل آذنتكم} أعلمتكم بالحرب {على سواء} حال من الفاعل والمفعول، أي مستوين في علمه لا أستبد به دونكم لتتأهبوا {وإن} ما {أدري أقريب أم بعيد ما توعدون} من العذاب أو القيامة المشتملة عليه وإنما يعلمه الله.