It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "It is not fitting for the knowledgeable person to remain silent about his knowledge, nor is it fitting for the ignorant person to remain silent about his ignorance. Allah, exalted be His mention, has said: 'So ask the people of knowledge if you do not know.'"
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is narrated from the Messenger of Allah (peace and blessings be upon him) only with this chain; al-Ansari is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5365
Hadith Gradingمحدثین:إسناده ضعيف لضعف محمد بن أبي حميد
Hadith Takhrij«قال الهيثمي: وفيه محمد بن أبي حميد وقد أجمعوا على ضعفه «مجمع الزوائد ومنبع الفوائد، ج 1، ص 165»»