The Peak of Eloquence · Hadith 1967 (#Passage #326)

٢٦٨. وَقَالَ (عليه السلام): أَحْبِبْ حَبِيبَكَ هَوْناً مَا عَسَى أَنْ يَكُونَ بَغِيضَكَ يَوْماً مَا، وَأَبْغِضْ بَغِيضَكَ هَوْناً مَا عَسَى أَنْ يَكُونَ حَبِيبَكَ يَوْماً مَا.

268. Amīr al-mu’minīn, peace be upon him, said: Have love for your friend up to a limit, for it is possible that he may turn into your enemy some day; and hate your enemy up to a limit for it is possible that he may turn into your friend some day.

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).