Sayyiduna Imran bin Husayn (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Whoever helps his brother in his absence, while he has the ability to help him, Allah Almighty helps that person in this world and the Hereafter."
Al-Bazzar recorded it; it is transmitted through several chains, one of which is mawquf on Sayyiduna Imran (may Allah be pleased with him), and the narrators of one of the several chains of the marfu' version are the narrators of the Sahih. Al-Tabarani also recorded it.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الفتن - أعاذنا الله منها / 12139