مروي عن الأئمة المعصومين عليهم السلام في كتب الأدعية المعتبرة.
It is worth mentioning that whoever intends to strengthen his memory is advised to use frequently the miswak (a stick used for cleansing the teeth), observe fasting, read regularly the Holy Qur'an in general and Ayah al-Kursi in particular, and addict himself to eating raisins, especially twenty grains of the red colored type, before having anything in the beginning of the day. This is useful for improving understandability, mentality, and memory. For good memory too, it is advised to eat the post-neck meat, candy, honey, and lentils. This direction is also useful for good memory: Equal amounts of olibanum, galingale, and sugar candy may be crushed softly and an amount of the mixture that is equal to five dirhams may be swallowed every day. This direction may be followed for three consecutive days and eschewed for five days, and so on. For good memory too, it is advisable to say these words every day after the dawn (fajr) Prayer before saying the taslim statement:
Inafaa kutaja kwamba yeyote anayekusudia kuimarisha kumbukumbu yake anashauriwa kutumia mswaki mara kwa mara (kijiti kinachotumika kusafisha meno), kufunga saumu, kusoma Quran Tukufu mara kwa mara kwa ujumla na hasa Ayah al-Kursi, na kuzoea kula zabibu kavu, hasa chembe ishirini za aina nyekundu, kabla ya kula chochote mwanzoni mwa siku. Hii ni muhimu kwa kuboresha uelewa, akili, na kumbukumbu. Kwa kumbukumbu nzuri pia, inashauriwa kula nyama ya nyuma ya shingo, peremende, asali, na dengu. Mwongozo huu pia ni muhimu kwa kumbukumbu nzuri: Kiasi sawa cha ubani (olibanum), mtatago (galingale), na sukari ya mawe kinaweza kusagwa taratibu na kiasi cha mchanganyiko huo kinacholingana na dirham tano kinaweza kumezwa kila siku. Maelekezo haya yanaweza kufuatwa kwa siku tatu mfululizo na kuachwa kwa siku tano, na kuendelea hivyo. Kwa kumbukumbu nzuri pia, inashauriwa kusema maneno haya kila siku baada ya Sala ya Alfajiri (fajr) kabla ya kutoa salamu (taslim):
يَا حَىُّ يَا قَيُّوْمُ
Yā ḥā yā qayyūmu
O He Who is ever-living! O He Who is self-subsisting
Ee Mwenye hai wa milele! Ee Msimamia mambo yote kwa nafsi Yake!
فَلَا يَفُوْتُ شَيْئًا عِلْمُهُ، وَ لَا يَؤُدُهُ.
Falā yafūtu shayʾan ʿilmuhu, wa lā yaʾuduhu.
that nothing at all can be missed by His knowledge or can tire Him!
ambaye hakuna kitu chochote kinachoponyoka katika ujuzi Wake, wala hakimchoshi (kukilinda)!
