As Salaamu Alaykum,
On Behalf of The Mod Team..
Three Sahaabahs stayed back from Ghazwat Tabuuk, They were:
- Ka'ab Ibn Maalik.
-Hilaal ibn Umayyah Al-Waaqifiyy
- & Miraarah ibn Rabee Al-'Amariyy.
They were the ones mentioned In Qawluhuu Ta'aalaa:
'Allah has forgiven the Prophet (PBUH), the Muhajirun (Muslim Emigrants who left their homes and came to Al-Madinah) and the Ansar (Muslims of Al-Madinah) who followed him (Muhammad (PBUH) in the time of distress (Tabuk expedition), after the hearts of a party of them had nearly deviated (from the Right Path), but He accepted their repentance. Certainly, He is unto them full of kindness, Most Merciful. And (He did forgive also) the three who did not join [the Tabuk expedition and whose case was deferred (by the Prophet (PBUH)) for Allah's Decision] till for them the earth, vast as it is, was straitened and their ownselves were straitened to them, and they perceived that there is no fleeing from Allah, and no refuge but with Him. Then, He forgave them (accepted their repentance), that they might beg for His Pardon [repent (unto Him)]. Verily, Allah is the One Who forgives and accepts repentance, Most Merciful. O you who believe! Be afraid of Allah, and be with those who are true (in word and deeds).'' (9:117,118).
They were also mentioned in The Hadeeth(called: The story of Ka'ab's repentance) which is In the Saheehayn, It's Narrated by Abdullah Ibn Ka'ab Ibn Maalik Radiyallaahu 'anhumaa, and can also be found in Riyaad As-Saaliheen Chapter 2 "Repentance"..
An Easy way to remember them Is By the Arabic Word: مكة
Notice that each letter ( م - ك - ه) is the first letter found in the names of each of those three Sahaabah...
م:
مرارة ابن ربيع -Miraarah ibn Rabee'
:ك
كعب ابن مالك - Ka'ab ibn Maalik.
: ه
هﻻل ابن امية - Hilaal Ibn Umayyah.
Wallaahu Ta'alaa A'laa A'lam!!