Jujube, Sidr or Lotus - A blessed tree with blessed fruit

Allah, the Exalted, says:

“And those on the Right Hand — how (fortunate) will be those on the Right Hand? (They will be) among thornless lote trees, And among Talh (banana trees) with fruits piled one above another.” (Soorah Al-Waqi‘ah, 56:27-29)

It was narrated from Malik Ibn Sa‘sa‘ah, may Allah be pleased with him, that the Prophet, blessings and peace of Allah be upon him, saw Sidrat Al-Muntaha (the Lote-Tree of the Utmost Boundary) on the night on which he was taken on his Night Journey, and its fruits were like the pitchers of Hajar. (Narrated by Al-Bukhari)

In a Saheeh Hadith, which was narrated by the six and Ahmad, it says that the Prophet, blessings and peace of Allah be upon him, said: “Wash him with water and lotus leaves.”
Ibn Katheer, may Allah have mercy upon him, said, narrating from Qatadah, “We used to say concerning the lotus that it was the plain one which has no thorns and that the lotus in this world has a lot of thorns and little fruit.”

Al-Hafiz Al-Dhahabi said, “Washing with lotus leaves cleanses the head more than anything else and takes away heat. The Messenger of Allah, blessings and peace of Allah be upon him, mentioned it with regard to washing the dead: “The fruit of the Lotus is like Za’roor (azarole -- a species of hawthorn). It maintains health and covers the lining of the stomach.” Ibn Al-Qayyim, may Allah have Mercy upon him, added, “It is beneficial in treating diarrhea, calms yellow bile, nourishes the body and stimulates the appetite. It is digested slowly, and soup made of it is good for the stomach. It is also good for bilious humors.”

The lotus is variously known as Zizyphus spina christi, Holy Thorn or Christ’s Thorn. It is a thorny shrub both wild and cultivated. It originates in Arabia and Yemen, and is grown in Egypt and on the coast of the Mediterranean. It belongs to the Rhamnaceae family. The fruit or jujube has a sweet taste and a nice smell. The most important active components of it are dextrose, fructose, zizyphic acid and astringent acid. Its fruits are nourishing and act as an expectorant and laxative. They help to lower temperature and are beneficial in cases of measles and stomach ulcers. The infusion of the leaves is astringent, expels worms, counteracts diarrhea and strengthens the roots of the hair. It is also beneficial in treating asthma and other lung problems.

A poultice made from the leaves may be used to treat abscesses. Boiling the wood is beneficial in treating intestinal ulcers, bleeding, menstruation and diarrhea. The resin takes away dandruff.
(Al-Tibb An-Nabawi by Ibn Al-Qayyim, Al-Tibb Min Al-Qur’an Was-Sunnah, Nabatat Al-‘Aqaqeer Wal-Tawabil)