Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "There will always be 30 people in my Ummah because of whom the earth will remain standing, through whom rain will be sent down, and through whom help will be given." Qatadah says: I hope that al-Hasan is one of them.
Al-Tabarani recorded it through Umar, and al-Bazzar from Anbasah al-Khawwas, and I do not know either of them; the rest of its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 16673