Hadith: I saw in my dream that I was using a tooth-stick when two men came to me, one of them older than the other. I gave the tooth-stick to the younger one, but I was told to give it to the older one first, so I did

عن عبد الله بن عمر رضي الله عنهما أَنَّ النَّبِيَّ -صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ- قَالَ: «أراني في المنام أَتَسَوَّكُ بِسِوَاكٍ، فجاءني رجلان، أحدهما أكبر من الآخر، فَنَاوَلْتُ السِّوَاكَ الأصغرَ، فقيل لي: كَبِّرْ، فَدَفَعْتُهُ إلى الأكبر منهما».
[صحيح] - [رواه البخاري معلقًا ومسلم. للفائدة: التعليق: أن يذكر المصنف الخبر بلا إسناد]

‘Abdullāh ibn ‘Umar (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "I saw in my dream that I was using a tooth-stick when two men came to me, one of them older than the other. I gave the tooth-stick to the younger one, but I was told to give it to the older one first, so I did."
[Authentic hadith] - [Al-Bukhari as Mu‘allaq/hanging, with a decisive form - Narrated by Muslim]

Explanation

The Prophet (may Allah's peace and blessings be upon him) saw in a dream that he was using a tooth-stick and two men came to him, one older than the other. He wanted to give it to the younger one, but it was said to him "give the older one first!". So he gave it to the older one.