Someone asked Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both): I take wages from these people and perform Hajj with them; is there a reward for me too? He said: Yes, "Those will have a share of what they have earned, and Allah is swift in taking account." [Surah al-Baqarah: 202]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8655