Mughira bin Shuba reported,
Musa asked his Lord to show him the highest rank in Paradise.Allah replied, "Those are the ones whose honor I planted with My own hand and sealed over. No eye has seen it, no ear has heard of it, and it has never crossed the heart of any human being. Its confirmation is in the Book of Allah 
, 'No soul knows what comfort of the eyes has been hidden from them' [Sajdah 32:17]."
Azami 336
Sahihعن المغيرة بن شعبة قال
سأل موسى ربه أن يريه أعلى منزلة. في الجنة. فقال: أولئك الذين أردت غرست كرامتهم بيدي، وختمت عليها، فلم ترعين ولم تسمع أذن، ولم يخطر على قلب بشر، ومصداقه في كتاب الله عز وجل: {فلا تعلم نفس ما أخفي لهم من قرة أعين} [سورة السجدة: ١٧] الآية.
Reported by Muslim in the Book of Faith (189) through several routes from Shaybi, who reported it from Mughira bin Shuba, mentioning it in a long hadith. It is documented in the book on the people of Paradise and Hell, and this hadith has come both as mawquf and marfu, with the marfu version being more sahih, as Tirmidhi said (3198). Moreover, this is not the kind of thing that can be said based on personal opinion, so it carries the status of a marfu report.