Kindness & Gentleness (Rifk)

[Source: Sahih Muslim 2593, Grade: Sahih]
Jareer رضي الله عنه‎ reported: The Messenger of Allah صلى الله عليه وسلم, peace and blessings be upon him, said:
He who is deprived of kindness is deprived of goodness. [Source: Sahih Muslim 2592, Grade: Sahih]
Abu Ad-Darda رضي الله عنه‎ reported: The Prophet صلى الله عليه وسلم, peace and blessings be upon him, said:
Whoever is given his portion of kindness has been given his portion of goodness, and whoever is deprived of his portion of kindness has been deprived of his portion of goodness. [Source: Sunan At-Tirmidhi 2013, Grade: Sahih]
Aisha رضي الله عنها reported:
A group of Jews asked permission to visit the Prophet and when they were admitted they said, “Death be upon you.” I said to them, “Rather death and the curse of Allah be upon you!” The Prophet, peace and blessings be upon him, said:
O Aisha, Allah is kind and He loves kindness in all matters. [Source: Sahih Bukhari 6528, Grade: Muttafaqun Alayhi]
Indeed, Allah sent Moses and Aaron, peace be upon them, to Pharaoh and He commanded them to speak mildly to him and to begin their invitation to Islam with gentleness.
Allah said [Surat Ta Ha 20:44]:
Speak to him mildly that perhaps he may remember or fear Allah.
Allah said [Surat At-Tariq 86:15-17]:
Verily, they are planning a plan and I am planning a plan. So give respite to the unbelievers, deal gently with them for a while.
Allah said [Surat At-Tawba 9:5-6]:
If they repent, establish prayer, and give charity, let them go their way. Verily, Allah is Forgiving and Merciful. If any one of the idolaters seeks your protection, then grant him protection so that he may hear the words of Allah. Then deliver him to his place of safety. That is because they are a people who do not know.
Aisha رضي الله عنها reported: I was upon a camel which was misbehaving so I began to beat it. The Messenger of Allah صلى الله عليه وسلم, peace and blessings be upon him, said:
You must be gentle. Verily, gentleness is not in anything except that it beautifies it, and it is not removed from anything except that it disgraces it. [Source: Musnad Ahmad 24417, Grade: Sahih]
Ibn Mas’udرضي الله عنه ‎  reported: The Messenger of Allah صلى الله عليه وسلم, peace and blessings be upon him, said:
Shall I not tell you for whom the Hellfire is forbidden? It is every person accessible, polite, and mild. [Source: Sunan At-Tirmidhi 2488, Grade: Hasan]
Quran, [Sura An-Nahl: 125]
Invite (mankind, O Muhammad صلى الله عليه وسلم) to the Way of your Lord (i.e. Islam) with wisdom (i.e. with Divine Revelation and the Qur’an) and beautiful preaching, and argue with them in a way that is better.)
Quran [Sura Al-Ankabut: 46]
And argue not with the People of the Book (Jews and Christians), except in a way that is better (with good words and in a good manner).)
Quran [Sura Aali-Imran: 159]
And by the Mercy of Allah, you dealt with them gently. And had you been severe and harsh-hearted17, they would have broken away from about you…)
Al-Imam Muslim narrated upon the authority of Abu Musa who said:
When the Messenger of Allah صلى الله عليه وسلم deputed any of his Companions on a mission, he would say:
Give good tidings (to the people); do not create (in their minds) aversion (towards religion); show them leniency and do not he hard upon them.
Quran [Sura At-Tawbah: 128]
Verily, there has come unto you a Messenger (i.e. Muh¬ammad صلى الله عليه وسلم) from amongst yourselves. It grieves him that you should receive any injury or difficulty. He (i.e. Muhammad ) is anxious over you (to be rightly guided, to repent to Allah, and beg Him to pardon and forgive your sins in order that you may enter paradise and be saved from the punishment of the Hell-fire); for the believers he is full of pity, kind and merciful.)
Al-Imam Sufyaan (Ath-Thawri) said:
No one should command the good and forbid the evil except he who has three qualities:

1. He is kind when he commands the good and he is kind when he forbids the evil.
2. He is just when he commands the good and he is just when he forbids the evil.
3. And he is knowledgeable about that which he commands to and he is knowledgeable about that which he forbids.