Mention of such a hadith in this regard whose words are general but whose meaning is specific

Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that Allah Almighty has made obligatory, through the blessed tongue of your noble Prophet (peace be upon him), four rak‘ahs of prayer in residence, two rak‘ahs in travel, and one prayer in a state of fear.

Because the words of the narration of Sayyiduna Ibn Abbas (may Allah be pleased with them both) are general, but what is meant by them is specific; his intention was that during travel, apart from Maghrib, the remaining prayers are obligatory as two rak‘ahs.

Lady Aisha (may Allah be pleased with her) narrates that (in the beginning of Islam) two rak‘ahs of prayer were made obligatory in both travel and residence. Then, when the Messenger of Allah (peace be upon him) settled in Madinah Munawwarah, two rak‘ahs were added to the prayer in residence, while the Fajr prayer was kept at two rak‘ahs due to its lengthy recitation, and the Maghrib prayer was kept at three rak‘ahs because it is the witr (odd-numbered prayer) of the day.

He may permit something in His Book with a condition, and He may permit that thing on the tongue of His Prophet, peace and blessings be upon him, without that condition by which He permitted it in the Book. For Allah, exalted is His mention, only permitted in His Book the shortening of the prayer when they travel in the land in fear that the disbelievers may persecute the Muslims. Yet Allah, mighty and majestic, permitted, on the tongue of His Prophet, peace and blessings be upon him, the shortening (of the prayer) even if they do not fear that the disbelievers may persecute them, with the evidence that the shortening during travel is a permission, not an obligation, that they must shorten the prayer.

Ya'la bin Umayyah narrates that I said to Sayyiduna Umar bin Khattab (may Allah be pleased with him) that I am surprised at people shortening the prayer, even though Allah Almighty has said «‏‏‏‏فَلَيْسَ عَلَيْكُمْ جُنَاحٌ أَن تَقْصُرُوا مِنَ الصَّلَاةِ إِنْ خِفْتُمْ أَن يَفْتِنَكُمُ الَّذِينَ كَفَرُوا» ‏‏‏‏ [ سورة النساء: 101 ] "And if you fear that the disbelievers may put you in trial, then there is no blame or sin upon you in shortening the prayer." And now this fear has ended. So Sayyiduna Umar (may Allah be pleased with him) said that I was also surprised at the same thing that you are surprised at, so I mentioned this matter before the Messenger of Allah (peace and blessings be upon him), and he said: "This is a charity which Allah Almighty has bestowed upon you as a mercy, so accept His charity (and benefit from this concession)."

It is not that His mention is exalted, that He specified their number in the Book with a similar revelation inscribed between the two covers, but this is of the kind whose obligation Allah has summarized in the Book and entrusted its explanation to His Prophet from Allah by word and deed. Allah said: (And We sent down to you the Reminder that you may make clear to the people what was sent down to them).__QUR_N__

Ummayah bin Abdullah bin Khalid reports that I said to Sayyiduna Abdullah bin Umar (may Allah be pleased with them): "We do not find mention of the prayer of residence and fear in the Noble Qur'an." So Sayyiduna Abdullah (may Allah be pleased with him) said: "O nephew, indeed Allah Almighty sent Muhammad (peace be upon him) to us, and we did not know anything, therefore we (now) do as we saw Muhammad (peace be upon him) doing."

Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that I traveled with the Messenger of Allah (peace and blessings of Allah be upon him), and with Sayyiduna Abu Bakr, Umar, and Uthman (may Allah be pleased with them all). All of them used to perform the Zuhr and Asr prayers as two rak‘ahs each (while traveling), and they would not perform any (nafl or sunnah) prayers before or after them. And Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said that if I had to perform (nafl or sunnah) prayers before or after these prayers (while traveling), then I would have performed the full prayers (and not shortened them).

Imam Abu Bakr, may Allah have mercy on him, says that this hadith of Sayyiduna Anas bin Malik, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, performed four rak'ahs of Zuhr prayer in Madinah Munawwarah and performed two rak'ahs of Asr prayer at the place of Dhul-Hulaifah. This is evidence that even in a state of peace and security, without fear of the mischief of the disbelievers, a person performing prayer (while traveling) can shorten the prayer.