Nafi' reported that Ibn 'Umar regarded halt at Muhassab as Sunnah (of the Holy Prophet) and observed the noon prayer on Yaum al-Nahr at that place. Nafi' said: Allah's Messenger (ﷺ) halted at Muhassab and the Caliphs did the same after him.
Abdullah bin 'Umar reported Allah's Messenger (ﷺ) as saying: I saw in a dream that I was using miswak and the two persons contended to get it from me, the one being older than the other one. I gave the miswak to the younger one. It was said to me to give that to the older one and I gave it to the older one.
'Abdullah bin 'Umar (RA) reported that Allah's Messenger (ﷺ) said: It was shown in a vision that I was rinsing my mouth with miswak and two persons began to contend with one another for getting that miswak. One was older than the other. I gave the miswak to the younger one amongst them, but it was said to me: (Let it be given) to the older one. So I gave it to the older one.
Hadith Referenceصحيح مسلم / كتاب الزهد والرقائق / 3003