It is narrated from Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Whoever conceals testimony when he has been called to give it is like the one who gives false testimony."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Makhul (may Allah have mercy on him) except al-Ala', no one narrated it from al-Ala' except Mu'awiyah, and no one narrated it from Mu'awiyah except Abdullah bin Salih. Abu Qurrah is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب العين / 4167
Hadith Gradingمحدثین:فيه عبد الله بن صالح مختلف فيه
Hadith Takhrij«قال الهيثمي: وفيه عبد الله بن صالح وثقه عبد الملك بن شعيب بن الليث فقال ثقة مأمون وضعفه جماعة «مجمع الزوائد ومنبع الفوائد، ج 4، ص 200»»