Travel by night, for the earth is folded up at night

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Hold fast to travelling in the last part of the night, for the earth is folded up at night (that is, the distance is covered quickly)."
Imam al-Hakim says: I had earlier mentioned another chain of this and was searching for a supporting narration (shahid) for it; so this is its supporting narration, provided it is free from (weakness on the part of the narrator) Khalid bin Yazid al-Umari.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever enters a (third) horse between two horses (for a race), not being sure that it will win (that is, the outcome is not fixed beforehand), then it is not gambling. But whoever enters a horse between two horses about which he is certain that it will (surely) win, then that is gambling."

Through another chain it is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said something similar.
This hadith has a sahih (authentic) chain of narration. Although the two Shaykhs did not record the hadiths of Sa'id bin Bashir and Sufyan bin Husayn, these two are imams of Syria and Iraq, and their hadiths are compiled. In my view, the two Shaykhs relied in this matter on the mursal narration of Imam Ma'mar (which he narrated from al-Zuhri).

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the saying of Allah Almighty: "O you who believe, obey Allah and obey the Messenger and those in authority among you" [al-Nisa: 59] was revealed concerning Sayyiduna Abdullah bin Qays bin Adi (may Allah be pleased with him), whom the Prophet (peace and blessings be upon him) sent as the commander of a military detachment.
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Uqbah bin Malik (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) dispatched a military detachment (sariyyah). I gave one of the men among them a sword as his weapon. When we returned to the Messenger of Allah (peace and blessings be upon him), he (peace and blessings be upon him) rebuked us and said: "Were you unable, when I sent a man (as commander) and he did not carry out my command (properly), to put in his place someone who would carry out my command?"
This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs (Bukhari and Muslim) did not record it.