It is narrated from Amir al-Sha'bi (may Allah have mercy on him) that Sayyiduna Ammar (may Allah be pleased with him) was asked about an issue, and he asked: "Has this happened yet?" The people said: No. He said: "Then leave us (from it) until it happens; when it does take place, we will research and investigate it for you."
This report is mawquf; its narrators are thiqat (trustworthy), and it is sahih (authentic) provided that al-Sha'bi's hearing from Sayyiduna Ammar (may Allah be pleased with him) is established.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب العلم / 3028
Hadith Gradingمحدثین:إسناده صحيح، موقوف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :قال ابن حجر: هَذَا مَوْقُوفٌ رِجَالُهُ ثِقَاتٌ ، وَهُوَ صَحِيحٌ إِنْ كَانَ الشَّعْبِيُّ سَمِعَ مِنْ عَمَّارٍ رَضِيَ اللهُ عَنْهُ . » «أخرجه مسند الدارمي برقم: 125»