"I have seen them write on their palms"

It is narrated in "Kitab Al-Ilm" of Abu Khaithama:

حدثنا أبو خيثمة ثنا وكيع ثنا أبي عن عبد الله بن حنش قال: لقد رأيتهم يكتبون على أكفهم بالقصب عند البراء

ENGLISH:

"I have indeed seen them (people) writing on their palms with stalk reeds in the presence of Al-Baraa".

NEDERLANDS:

"Ik heb mensen met rietstengels op hun handpalmen zien schrijven in de aanwezigheid van Al-Baraa".

["Kitab Al-Ilm", 147].